01960oam 2200493I 450 991070726080332120160610150522.0(CKB)5470000002462899(OCoLC)891382707(EXLCZ)99547000000246289920140926d1969 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierMineral resources of the San Juan primitive area, Colorado an evaluation of the mineral potential of the area /by T.A. Steven and [and three others] ; with a section on Iron resources in the Irving Formation by Jacob E. Gair and Harry Klemic[Washington, D.C.] :United States Department of the Interior, Geological Survey,1969.Washington :United States Government Printing Office.1 online resource (viii, 187 pages, 2 pages of plates) illustrations, color mapsGeological Survey bulletin ;1261-FStudies related to wilderness-primitive areasTitle from title screen (viewed September 15, 2014).Includes bibliographical references (pages 118-120) and index.Mineral resources of the San Juan primitive area, Colorado GeologyColoradoMines and mineral resourcesColoradoWilderness areasColoradoGeologyMines and mineral resourcesWilderness areasSteven Thomas A(Thomas August),1917-2013,1388925Gair Jacob Eugene1922-Klemic Harry1920-Geological Survey (U.S.),COPCOPOCLCOOCLCAGPOBOOK9910707260803321Mineral resources of the San Juan primitive area, Colorado3507492UNINA